There has been an upgrade to the Topaz Adjust filter to version 5. I was playing around to see how it might be able to 'help' with Astro pictures. Here is the results of Topaz Adjust 5 with HDR settings on my image of the Tarantula. I'm not saying that the end result could not be achieved by other standard means but for those of us still learning this may be of help. It has certainly helped me bring out some of the fainter details that I was struggling with. If you consider the result too dynamic then there are an infinite number of sliders and adjustments that can be used to produce a less striking result.
Thanks for looking.
Paul